Snap-fastener socket



D. BOURQUE. SNAP FASTENER SOCKET.

APPLICATION FILED APR. I5, |921.

1,432,669. Pamed 001;. 17, 1922.

@M Mm@ Patented @et 17, 1922.

unirse stares DAVID BOURQUE, OF AMESBURY, MASSACHUSETTS, ASSIGNOR G. W. J'. MURPHY COMPANY, OF AMESBURY, MASSACHUSETTS, A

SETTS.

CORPORATION OF MASSACHU- SNAP-FASTENER SOCKET.

Application filed. April 15,

To all whom t may concern.'

Be it known that I, DAVID BOURQUE, a citizen of the United States, and a resident of Amesbury, county of Essex, and State of Massachusetts, have invented an Improvement in Snap-Fastener Sockets, of which the following description, in connection with the accompanying drawings, is a specilication, like characters on the drawings representing like parts.

This invention relates to fasteners and the purpose more particularly is to provide an improved form of female or socket element for a snap fastener.

My invention will best be understood by reference to the following description of an illustrative embodiment thereof shown by way of example in the accompanying drawings, wherein:

Fig. l is a plan view of a socket element constructed in accordance with my invention with part broken away;

F ig. 2 is a side elevation thereof;

Fig. 3 is a section on the line 3 3 of Fig. l; and

Fig. 4 is a view similar to Fig. 3 showing the socket in an intermediate stage of its construction.

Referring' to the drawings, the socket element here shown utilizes in its construction a main body formed from a single piece of sheet metal and embodying a connecting portion 5 with which. arerformed integrally a plurality of arms 7. ln the example of the invention shown the connecting element 5 is disposed centrally and the arms 7 radiate outwardly therefrom, forming a centric group adapted to close upon the enlarged head of a stud member of any desired form.

To provide for resiliency and a grasping jaw for the socket member the arms 7 are bent or cranked and herein (see Fig. 3) are iirst inclined inwardly at 9 and then extended outwardly at ll to provide the elbows 13 which cooperate as shown in Fig. l to provide a nearly complete ring forming a restricted entrance to the space defined by the parts 9 through which entrance the enlarged head of a stud may snap.

1921. serial No. 461,512.

The fastener comprising the part 5 and 50 the radiating arms 7 may obviously be constructed by simple stamping voperations from a piece of sheet metal. The arms have inherent resiliency as the cranking of the arms which causes them to act as springs. However, this quality can not be properly utilized if the individual arms bend as a whole about the point of connection thereof with the connecting portion 5. To prevent undue yielding of the arms in this manner While permitting the fastener to be constructed by a simple dieing operation l provide as a separate element a restraining device for the arms.

Preferably this restraining element takes the form of an endless ring l5 of wire to which the ends of the arms 7 opposite the connecting part 5 are secured. Referring to Fig. 4L, the ends of the arms may loe flanged as indicated at 17, the anges 17 70 forming as interrupted cylinder and the ring l5 may be dropped into the interior of these lianges as indicated in F ig. l and the flanges upset or rolled over the ring in the manner shown in F ig. 3, thus securing the outer ends of the arms 7 and holding them permanently to the circumference of the ring, By this` means the yielding of 'the 4arms is restricted to the resiliency provided for by their cranked torni and undue weakness of 'so the fastener is avoided.

As has been pointed out, the construction is such to facilitate the manufacture of the fastener, the sheet metal part being conveniently formed by a stamping or pressing operation. The fact that initially one end of each of the arms 7 is free permits the fastener to be brought to the form shown in Fig. 4 very easily and without undue strain on the metal. The rings may be conveniently assembled with Vthe sheet metal part by automatic machinery, for example, being picked from raceways and the flanges 17 upset by suitable dies. As indicated in the drawing in a device formed as shown with arms 7 radiating outwardly from a central part 5, this part 5 may be made annular providing the central opening 19 fmrilitating the handling` of the parts and providing a t socket element for a fastener comprising` convenient means for fastening the jaw a centric series of arms inc-lining inwardly within a, housing' if desired. and then extending outwardly and a ring Having described in detail the particular about which the extremities ot the arms are form of my invention shown in the :iceomcrimped.

panying drawings, what I Claim as new and In testimony whereof,v I have signed my desire to secure by Letters Patent I shall exname to this specification. press in the following` Claim. DAVID BOURQUE. 

